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CONTENTS
Chapter 1
Introduction .............................................................................................................. 2
1.1 Features ........................................................................................................................................................ 2
1.2 Getting Help ................................................................................................................................................. 3
Chapter 2
ICB Architecture ...................................................................................................... 4
2.1 Layout and Components ............................................................................................................................... 4
2.2 Block Diagram of the ICB............................................................................................................................ 5
Chapter 3
Board Components .................................................................................................. 7
3.1 HSMC Expansion Connector ....................................................................................................................... 7
3.2 GPIO Interface ........................................................................................................................................... 10
3.3 RS-232 Interface ........................................................................................................................................ 11
3.4 RS-485 Interface ........................................................................................................................................ 12
3.5 CAN Interface ............................................................................................................................................ 14
3.6 PIO Interface .............................................................................................................................................. 14
Chapter 4
Assembling the ICB Card ..................................................................................... 16
4.1 Assemble ICB with DE2-115 ..................................................................................................................... 16
4.2 Generate ICB Project via DE2-115 System Builder .................................................................................. 17
Chapter 5
ICB Demonstrations .............................................................................................. 21
5.1 System Requirements ................................................................................................................................. 21
5.2 RS-232 Communication ............................................................................................................................. 21
5.3 RS-485 Loopback Test ............................................................................................................................... 23
5.4 CAN Loopback Test ................................................................................................................................... 25
Chapter 6
Appendix ................................................................................................................. 28
6.1 Revision History ......................................................................................................................................... 28
6.2 Copyright Statement ................................................................................................................................... 28
2
Chapter 1
Introduction
The Industrial Communication Board (ICB-HSMC) is designed to provide common industry
standard interfaces for FPGA platforms that support RS-232, RS-485, and CAN connectivity
through a High-Speed Mezzanine Connector (HSMC). It allows users to setup a communication
network for industrial use through the industrial standard interfaces on the ICB. This board features
one RS-232 interface, one GPIO interface, four RS-485 interfaces, two CAN interfaces, and four
PIO interfaces. The ICB is an ideal addition to the DE2-115 platform for developing industrial
networking solutions on Altera FPGAs.
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Figure 1-1 shows a photograph of the ICB.
Figure 1-1 Layout of the ICB
The key features of the card are listed below:
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HSMC Connector
40-Pin GPIO interface
o 36 user I/Os
Two 6-Pin PIO interfaces
o 4 user I/Os per interface
12-Pin PIO interface
o 8 user I/Os
RS-232 interface
o Maxim RS-232 transceiver (MAX3238) support streaming transmission up to 250kbps
o Complete RS-232 signal interface
o 1 male DB9 Connector and one 10-pin header (shares pins with DB9 Connector)
RS-485 interface
o Analog Device isolated RS-485 transceiver (AMD2486), Profibus compliant
o Half-duplex transmission with data rate up to 20Mbps
o 4 channel transceivers, two channels output with DB9 female connectors and 10-pin
headers (share pins with DB9), two channels output with 10-pin headers
CAN interface
o Maxim Low-Supply-Current CAN transceiver (MAX3051)
o High speed operation up to 1Mbps
o 2 male DB9 and two 10-pin headers (share pins with Connectors)
Power
o Isolated 5V power supply for RS-485 transceiver bus side
o 5V/3.3V power supply
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Here is information of how to get help if you encounter any problems:
Terasic Technologies
Tel: +886-3-575-0880
Email: [email protected]
4
Chapter 2
ICB Architecture
This chapter describes the architecture of the ICB including block diagram and components.
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The picture of the ICB is shown in Figure 2-1 and Figure 2-2. It depicts the layout of the board and
indicates the locations of the connectors and key components.
Figure 2-1 The ICB-HSMC PCB and component diagram (top view)
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Figure 2-2 The ICB-HSMC PCB and component diagram (bottom view)
The following interfaces are provided on the ICB:
HSMC Connector (J7)
40-pin GPIO Header (J3)
6-pin Header (JP1/JP6)
12-pin Header(JP7)
10-pin Header (JP2/JP3/JP4/JP5/JP6/JP9/JP10)
DB9 Connector (J1/J2/J4/J5/J6)
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Figure 2-3 shows the block diagram of the ICB-HSMC. The HSMC connector houses all the wires
from peripheral interfaces and makes to the FPGA on the main board.
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Figure 2-3 Block diagram of ICB-HSMC
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Chapter 3
Board Components
This chapter describes the components, connectors, and pin assignments on the ICB.
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The HSMC interface provides a mechanism to extend the peripheral set of an FPGA host board by
means of a mezzanine card, which can address today’s high speed signaling requirement as well as
standard or legacy low-speed device interface support. Table 3-1 lists the pin assignments of the
HSMC connector.
Table 3-1 Pin assignments and descriptions on HSMC connector
Pin Numbers Name Direction Description
1-32 - - -
33 HSMC_SDA Input/Output HSMC serial address/data I/O
34 HSMC_SCL Output HSMC serial clock
35 HSMC_TCK Output JTAG clock
36 HSMC_TMS Output JTAG mode select
37 HSMC_TDO Input JTAG test data out
38 HSMC_TDI Output JTAG test data in
39 - - -
40 - - -
41 GPIO_DATA34 Input/Output GPIO data
42 GPIO_DATA33 Input/Output GPIO data
43 GPIO_DATA35 Input/Output GPIO data
44 GPIO_DATA32 Input/Output GPIO data
45 VCC3P3 Power Power 3.3V
46 VCC12 Power Power 12V
47 GPIO_DATA4 Input/Output GPIO data
48 GPIO_DATA0 Input/Output GPIO data
49 GPIO_DATA5 Input/Output GPIO data
50 GPIO_DATA1 Input/Output GPIO data
51 VCC3P3 Power Power 3.3V
52 VCC12 Power Power 12V
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53 GPIO_DATA6 Input/Output GPIO data
54 GPIO_DATA2 Input/Output GPIO data
55 GPIO_DATA7 Input/Output GPIO data
56 GPIO_DATA3 Input/Output GPIO data
57 VCC3P3 Power Power 3.3V
58 VCC12 Power Power 12V
59 GPIO_DATA12 Input/Output GPIO data
60 GPIO_DATA8 Input/Output GPIO data
61 GPIO_DATA13 Input/Output GPIO data
62 GPIO_DATA9 Input/Output GPIO data
63 VCC3P3 Power Power 3.3V
64 VCC12 Power Power 12V
65 GPIO_DATA14 Input/Output GPIO data
66 GPIO_DATA10 Input/Output GPIO data
67 GPIO_DATA15 Input/Output GPIO data
68 GPIO_DATA11 Input/Output GPIO data
69 VCC3P3 Power Power 3.3V
70 VCC12 Power Power 12V
71 GPIO_DATA20 Input/Output GPIO data
72 GPIO_DATA16 Input/Output GPIO data
73 GPIO_DATA21 Input/Output GPIO data
74 GPIO_DATA17 Input/Output GPIO data
75 VCC3P3 Power Power 3.3V
76 VCC12 Power Power 12V
77 GPIO_DATA22 Input/Output GPIO data
78 GPIO_DATA18 Input/Output GPIO data
79 GPIO_DATA23 Input/Output GPIO data
80 GPIO_DATA19 Input/Output GPIO data
81 VCC3P3 Power Power 3.3V
82 VCC12 Power Power 12V
83 GPIO_DATA28 Input/Output GPIO data
84 GPIO_DATA24 Input/Output GPIO data
85 GPIO_DATA29 Input/Output GPIO data
86 GPIO_DATA25 Input/Output GPIO data
87 VCC3P3 Power Power 3.3V
88 VCC12 Power Power 12V
89 GPIO_DATA30 Input/Output GPIO data
90 GPIO_DATA26 Input/Output GPIO data
91 GPIO_DATA31 Input/Output GPIO data
92 GPIO_DATA27 Input/Output GPIO data
93 VCC3P3 Power Power 3.3V
94 VCC12 Power Power 12V
95 RS232_RI Output RS-232 RI
96 RS232_RTS Input RS-232 RTS
97 RS232_CTS Output RS-232 CTS
98 RS232_DTR Input RS-232 DTR
99 VCC3P3 Power Power 3.3V
100 VCC12 Power Power 12V
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101 PIO1_DATA0 Input/Output PIO1 data
102 PIO0_DATA0 Input/Output PIO0 data
103 PIO1_DATA1 Input/Output PIO1 data
104 PIO0_DATA1 Input/Output PIO0 data
105 VCC3P3 Power Power 3.3V
106 VCC12 Power Power 12V
107 PIO1_DATA2 Input/Output PIO1 data
108 PIO0_DATA2 Input/Output PIO0 data
109 PIO1_DATA3 Input/Output PIO1 data
110 PIO0_DATA3 Input/Output PIO0 data
111 VCC3P3 Power Power 3.3V
112 VCC12 Power Power 12V
113 PIO3_DATA0 Input/Output PIO3 data
114 PIO2_DATA0 Input/Output PIO2 data
115 PIO3_DATA1 Input/Output PIO3 data
116 PIO2_DATA1 Input/Output PIO2 data
117 VCC3P3 Power Power 3.3V
118 VCC12 Power Power 12V
119 PIO3_DATA2 Input/Output PIO3 data
120 PIO2_DATA2 Input/Output PIO2 data
121 PIO3_DATA3 Input/Output PIO3 data
122 PIO2_DATA3 Input/Output PIO2 data
123 VCC3P3 Power Power 3.3V
124 VCC12 Power Power 12V
125 RS485_2_RXD Input RS-485 channel 2 RXD
126 RS485_0_RXD Input RS-485 channel 0 RXD
127 RS485_2_TXD Output RS-485 channel 2 TXD
128 RS485_0_TXD Output RS-485 channel 0 TXD
129 VCC3P3 Power Power 3.3V
130 VCC12 Power Power 12V
131 RS485_2_RTS Output RS-485 channel 2 RTS
132 RS485_0_RTS Output RS-485 channel 0 RTS
133 RS485_3_RXD Input RS-485 channel 3 RXD
134 RS485_1_RXD Input RS-485 channel 1 RXD
135 VCC3P3 Power Power 3.3V
136 VCC12 Power Power 12V
137 RS485_3_TXD Output RS-485 channel 3 TXD
138 RS485_1_TXD Output RS-485 channel 1 TXD
139 RS485_3_RTS Output RS-485 channel 3 RTS
140 RS485_1_RTS Output RS-485 channel 1 RTS
141 VCC3P3 Power Power 3.3V
142 VCC12 Power Power 12V
143 RS232_DSR Output RS-232 DSR
144 POWER_VALID Output RS-485 0,1,2,3 power valid
145 RS232_TXD Output RS-232 TXD
146 RS232_DCD Output RS-232 DCD
147 VCC3P3 Power Power 3.3V
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148 VCC12 Power Power 12V
149 CAN1_T Output CAN channel 1 TXD
150 CAN0_T Output CAN channel 0 TXD
151 CAN1_R Input CAN channel 1 RXD
152 CAN0_R Input CAN channel 0 RXD
153 VCC3P3 Power Power 3.3V
154 VCC12 Power Power 12V
155 - - -
156 RS232_RXD Input RS-232 RXD
157 - - -
158 - - -
159 VCC3P3 Power Power 3.3V
160 GND Power Power Ground
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This section describes the GPIO interface on the ICB
The ICB contains a GPIO interface with a 40-pin header. Figure 3-1 shows the pin names defined
on the GPIO connector used in general purpose applications. For pin mapping information between
the GPIO and HSMC connector, please refer to Table 3-1, using pin names here as indexes.
Figure 3-1 Pin names defined on GPIO connector
GPIO is widely used for housing various application needs such as video processing or image
acquisition, etc. It supports up to 50Mbps data rate using a reliable cable connection. Each data pin
on the GPIO is connected to an extra protection circuit made up of two clamping diodes and one
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serial resistor. Figure 3-2 shows the protection circuitry that is on each of the 36 data pins on the
40-pin header.
Figure 3-2 Protection circuit for data pins on GPIO
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This section describes the RS-232 interface on the ICB-HSMC.
The ICB provides a full featured RS-232 interface using a Maxim 3238 chip with a guaranteed data
rate of 250 Kbps. Figure 3-3 shows the I/O connectors J4 and JP8 for the RS-232 signals.
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Figure 3-3 Wiring between the HSMC and RS-232 interface
The male RS-232 connector provides the industrial standard cabling interface, in addition to a
10-pin header used for simple communication conditions where a specific cable is not needed.
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This section describes RS-485 interface on the ICB-HSMC.
There are four RS-485 links from the HSMC connector to two female DB9 connectors and four
10-pin headers. Two of the 10-pin headers share pins with the two DB9 connectors. Within the four
ports, two ports are compliant with the profibus specification and are suitable of using as physical
link in industrial multi-terminal control applications. Figure 3-4 shows the hardware wiring
between the HSMC and one RS-485 channel.
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Figure 3-4 Wiring between HSMC and RS-485 interface
Table 3-2
gives the pin assignments on 10-pin headers and DB9 connectors for RS-485 signals.
Table 3-2 Pin assignments and descriptions for RS-485 interfaces
RS-485 Channel Signal Name 10-pin Header DB9 connector
Channel 0 (Profibus
compliance)*
RS485_0_A 5(JP3) 3(J2)
RS485_0_B 6(JP3) 8(J2)
RS485_0_RTS_CON 7(JP3) 4(J2)
VCC5_ISO 2(JP3) 6(J2)
GND 9(JP3) 5(J2)
Channel 1
RS485_1_A 6(JP2) 8(J1)
RS485_1_B 5(JP2) 3(J1)
RS485_1_RTS_CON 7(JP2) 4(J1)
VCC5_ISO 2(JP2) 6(J1)
GND 9(JP2) 5(J1)
Channel 2 (Profibus
compliance)*
RS485_2_A 5(JP5) -
RS485_2_B 6(JP5) -
RS485_2_RTS_CON 7(JP5) -
VCC5_ISO 2(JP5) -
GND 9(JP5) -
Channel 3
RS485_3_A 6(JP4) -
RS485_3_B 5(JP4) -
RS485_3_RTS_CON 7(JP4) -
VCC5_ISO 2(JP4) -
GND 9(JP4) -
*Note, the Profibus implementation is not fully tested on the ICB.
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This section describes the CAN interface on the ICB-HSMC.
The board features two CAN links from the HSMC connector to two DB9 male connectors and two
10-pin headers. These two 10-pin headers share the same pins with two DB9 connectors. Figure 3-5
shows the connections between the HSMC and the CAN interface through a CAN transceiver chip.
Figure 3-5 Wiring between HSMC and CAN interface
Table 3-3
gives the pin assignments on 10-pin headers and DB9 connectors for CAN signals.
Table 3-3 Pin assignments and descriptions for CAN interfaces
CAN Channel Signal Name 10-pin Header DB9 Connector
Channel 0 CANH 4(JP10) 7(J6)
CANL 3(JP10) 2(J6)
GND 2,5(JP10) 3,5,6(J6)
Channel 1 CANH 4(JP9) 7(J5)
CANL 3(JP9) 2(J5)
GND 2,5(JP9) 3,5,6(J5)
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This section describes the PIO interface on the ICB-HSMC.
The board has four PIO links from the HSMC connector with two 6-pin ports and one 12-pin port
(dual PIO link). The 6-pin PIO port not only provides four general-purpose I/Os but also has one
3.3V power supply and one ground pin. Figure 3-6 gives the related schematic of the PIO
connector.
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Figure 3-6 Wiring between HSMC and PIO interface
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Chapter 4
Assembling the ICB Card
This chapter gives instructions for connecting the ICB to versatile host boards.
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For connecting the ICB to the DE2-115 board, plug the ICB to the HSMC ‘socket’ (JP8) of the
DE2-115 board. Users could additionally screw on and tighten the connection for extra mechanical
stability. Figure 4-1 shows the assembled hardware.
Figure 4-1 Assembling ICB with DE2-115 board
Note that the ICB is designed to use the 3.3V or 2.5V I/O signaling standard. Before powering on
the DE2-115 board, set the desired I/O standard for the HSMC connector. Figure 4-2 shows the
header for setting the HSMC power supply voltage.
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Figure 4-2 HSMC VCCIO supply voltage setting header (JP7)
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The DE2-115 board comes with a useful utility that helps users generate top level design and pin
assignment files that include specific HSMC daughter card information. The automatically
generated top level design and Quartus II setting file eliminate potential common mistakes
encountered when manually typing in the signal wires between DE2-115 and daughter card.
Install and launch the DE2-115 System Builder
The DE2-115 System Builder is available from the INK system CD-ROM, under the INK_tools
folder. Users can copy the entire folder to a host PC without installing the utility. Before using the
DE2-115 System Builder, execute the DE2_115_SystemBuilder.exe on the host computer as shown
in Figure 4-3.
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Figure 4-3 The DE2-115 System Builder window
Input Project Name
Input project name as show in Figure 4-4.
Project Name: Type in an appropriate name here, it will automatically be assigned as the name of
your top-level design entity.
19
Figure 4-4 The DE2-115 Board Type and Project Name
System Configuration
Under System Configuration, users can enable the desired components on the FPGA host board as
shown in Figure 4-5. If the component is enabled, the DE2-115 System Builder will automatically
generate the associated pin assignments, including the pin names, pin locations, pin directions, and
I/O standards.
Figure 4-5 System Configuration Group
HSMC Expansion
Figure 4-6 illustrates the usage of the DE2-115 System Builder specifying ICB connecting to the
HSMC interface. This will automatically generate wiring connections between the host board and
ICB-HSMC.
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